Oh yeah my bookcase stays out permanently since of course its now ruined from trapping squirrels on it. The squirrels use the back fence as their highway for when they climb out of the tree in my neighbors yard. They are rarely on the ground due to all the cats that live in the lot behind my house. I dont chum a lot. I actually hide the chum under a rock in the little dish that sits in the trap. it works really well for me. but I will start switching it around more.